We show that a general late-time interaction between cold dark matter and vacuum energy
is favored by current cosmological data sets. We characterize the strength of the coupling by …

We investigate a phenomenological non-gravitational coupling between dark energy and
dark matter, where the interaction in the dark sector is parameterized as an energy transfer …

We test the models of vacuum energy interacting with cold dark matter and try to probe the
possible deviation from the Λ CDM model using current observations. We focus on two …

Abstract The Λ Cold Dark Matter model (ΛCDM) represents the current standard model in
cosmology. Within this, there is a tension between the value of the Hubble constant, H 0 …

We investigate an interacting dark sector scenario in which the vacuum energy is free to
interact with cold dark matter (CDM), which itself is assumed to cluster under the sole action …

We analyze a cosmological model featuring an interaction between dark energy and dark
matter in light of the measurements of the Cosmic Microwave Background released by three …

We consider a recently proposed model in which dark matter interacts with a thermal
background of dark radiation. Dark radiation consists of relativistic degrees of freedom which …

We study observational signatures of non-gravitational interactions between the dark
components of the cosmic fluid, which can be either due to creation of dark particles from the …

Over the past decade, the disparity between the value of the cosmic expansion rate
determined directly from measurements of distance and redshift and that determined instead …

Cosmological models where dark matter (DM) and dark energy (DE) interact with each other
are the general scenarios in compared to the non-interacting models. The interaction is …